|
1920
|
B
Sherratt
|
A
Chat about the Camera, Slides and Lenses
|
|
1926
|
R
S Galloway
|
Ortho Plates and Films
[demonstration]
|
|
1926
|
V
L Alexander
|
The
Pathé Cinema and Projector
|
|
1927
|
? |
Cinematography [Pathé
Bros] [demonstration]
|
|
1928
|
E
Westergaard
|
Cameras
[demonstration]
|
|
1929
|
?
|
Panchromatism
[Imperial
Dry Plate Co ]
|